ChemSpider 2D Image | MFCD02258879 | C19H18O8

MFCD02258879

  • Molecular FormulaC19H18O8
  • Average mass374.341 Da
  • Monoisotopic mass374.100159 Da
  • ChemSpider ID110666

More details:






Validated by Experts, Validated by Users, Non-Validated, Removed by Users

4H-1-Benzopyran-4-one, 5-hydroxy-2-(2-hydroxy-6-methoxyphenyl)-6,7,8-trimethoxy- [ACD/Index Name]
5,2'-Dihydroxy-6,7,8,6'-tetramethoxyflavone
55084-08-7 [RN]
5-Hydroxy-2-(2-hydroxy-6-methoxyphenyl)-6,7,8-trimethoxy-4H-chromen-4-on [German] [ACD/IUPAC Name]
5-Hydroxy-2-(2-hydroxy-6-methoxyphenyl)-6,7,8-trimethoxy-4H-chromen-4-one [ACD/IUPAC Name]
5-Hydroxy-2-(2-hydroxy-6-méthoxyphényl)-6,7,8-triméthoxy-4H-chromén-4-one [French] [ACD/IUPAC Name]
5-hydroxy-2-(2-hydroxy-6-methoxyphenyl)-6,7,8-trimethoxychromen-4-one
MFCD02258879
Scullcapflavone II
skullcapflavone II
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Validated by Experts, Validated by Users, Non-Validated, Removed by Users

C10183 [DBID]
NCI60_040650 [DBID]
NSC717846 [DBID]
  • Miscellaneous
    • Chemical Class:

      A tetramethoxyflavone that is flavone substituted by methoxy groups at positions 6, 7, 8 and 6' and hydroxy groups at positons 5 and 2' respectively. ChEBI CHEBI:9061

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module

Density: 1.4±0.1 g/cm3
Boiling Point: 636.9±55.0 °C at 760 mmHg
Vapour Pressure: 0.0±1.9 mmHg at 25°C
Enthalpy of Vaporization: 97.5±3.0 kJ/mol
Flash Point: 230.9±25.0 °C
Index of Refraction: 1.613
Molar Refractivity: 94.7±0.3 cm3
#H bond acceptors: 8
#H bond donors: 2
#Freely Rotating Bonds: 5
#Rule of 5 Violations: 0
ACD/LogP: 1.58
ACD/LogD (pH 5.5): 2.22
ACD/BCF (pH 5.5): 28.49
ACD/KOC (pH 5.5): 377.49
ACD/LogD (pH 7.4): 1.55
ACD/BCF (pH 7.4): 6.04
ACD/KOC (pH 7.4): 80.00
Polar Surface Area: 104 Å2
Polarizability: 37.5±0.5 10-24cm3
Surface Tension: 54.9±3.0 dyne/cm
Molar Volume: 272.1±3.0 cm3

Predicted data is generated using the US Environmental Protection Agency’s EPISuite™

                        
 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  2.66

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  524.14  (Adapted Stein & Brown method)
    Melting Pt (deg C):  223.87  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  8.37E-013  (Modified Grain method)
    Subcooled liquid VP: 1.13E-010 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  89.51
       log Kow used: 2.66 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  44.768 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Phenols
       Vinyl/Allyl Ketones
       Vinyl/Allyl Ethers

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   6.03E-018  atm-m3/mole
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  4.606E-015 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Log Kow used:  2.66  (KowWin est)
  Log Kaw used:  -15.608  (HenryWin est)
      Log Koa (KOAWIN v1.10 estimate):  18.268
      Log Koa (experimental database):  None

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   1.4673
   Biowin2 (Non-Linear Model)     :   1.0000
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   2.1716  (months      )
   Biowin4 (Primary Survey Model) :   3.7504  (days        )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.8533
   Biowin6 (MITI Non-Linear Model):   0.6477
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8176
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  1.51E-008 Pa (1.13E-010 mm Hg)
  Log Koa (Koawin est  ): 18.268
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  199 
       Octanol/air (Koa) model:  4.55E+005 
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  1 
       Mackay model           :  1 
       Octanol/air (Koa) model:  1 

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant = 234.0134 E-12 cm3/molecule-sec
      Half-Life =     0.046 Days (12-hr day; 1.5E6 OH/cm3)
      Half-Life =     0.548 Hrs
   Ozone Reaction:
      OVERALL Ozone Rate Constant =    10.500000 E-17 cm3/molecule-sec
      Half-Life =     0.109 Days (at 7E11 mol/cm3)
      Half-Life =      2.619 Hrs
   Reaction With Nitrate Radicals May Be Important!
   Fraction sorbed to airborne particulates (phi): 1 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  9.754E+004
      Log Koc:  4.989 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.509 (BCF = 3.226)
       log Kow used: 2.66 (estimated)

 Volatilization from Water:
    Henry LC:  6.03E-018 atm-m3/mole  (estimated by Bond SAR Method)
    Half-Life from Model River: 1.879E+014  hours   (7.828E+012 days)
    Half-Life from Model Lake : 2.049E+015  hours   (8.539E+013 days)

 Removal In Wastewater Treatment:
    Total removal:               3.64  percent
    Total biodegradation:        0.11  percent
    Total sludge adsorption:     3.54  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       3.83e-007       0.773        1000       
   Water     13              1.44e+003    1000       
   Soil      86.9            2.88e+003    1000       
   Sediment  0.153           1.3e+004     0          
     Persistence Time: 2.49e+003 hr




                    

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